Correlations

• What technique is a correlation?

  Statistical technique
• What does a correlation measure?

  Relationship between tow or more variables
• What does a research not manipulate to find correlations?

  Variables
• What is measured in correlations?

  Set of co-variables that are related to each other
• What are correlations often used for?

  To assess the reliability of some types of psychological research
• What are the three types of the correlations?

  • Positive
  • Negative
  • Zero
• What does a positive correlation mean?

  As one variable increases so does the other
• What does a negative correlation mean?

  As one variable increases the other decreases
• What does a zero correlation mean?

  No relationship is shown between the variables
• What is the typical way to present a correlation?

  Scatter graph
• How is the strength of a correlation calculated?

  Using a correlation coefficient
• What is the scale of a statistical value when calculating the strength of a correlation?

  +1 to -1
• What does it mean if the statistical value is closer to one when calculating the strength of a correlation?


  Stronger the correlation is closer to one it is